SOCIOL 3H06 Chapter Notes - Chapter 11: Scatter Plot, Dependent And Independent Variables, Multicollinearity
28 Apr 2015
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Regression analysis: a technique employed in predicting values of one variable (y) from knowledge of values of another variable (y) Y-intercept: in regression, the point where the regression line crosses the y axis. The y-intercept is the predicted value of y for an x value of zero. Slope (regression co-efficient): in regression, the change in the regression line for a unit increase in x. The slope is interpreted as the change in the y variable associated with a unit change in the x variable. Error term: the residual portion of a score that cannot be predicted by the independent variable. Also the distance of a point from the regression line. Regression line: a straight line drawn through the scatter plot that represents the best possible fit for making predictions of y from x. Coefficient of determination: equal to the pearson"s correlation squared, the proportion of variance in the dependent variable that is explained by the independent variable.
